31380875

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:288

約数の個数: 32

約数和(自身を含む): 42020160

約数和(自身を除く): 10639285

約数列:

[1, 5, 19, 25, 73, 95, 125, 181, 365, 475, 905, 1387, 1825, 2375, 3439, 4525, 6935, 9125, 13213, 17195, 22625, 34675, 66065, 85975, 173375, 251047, 330325, 429875, 1255235, 1651625, 6276175, 31380875]

約数ペア:

[(1, 31380875), (5, 6276175), (19, 1651625), (25, 1255235), (73, 429875), (95, 330325), (125, 251047), (181, 173375), (365, 85975), (475, 66065), (905, 34675), (1387, 22625), (1825, 17195), (2375, 13213), (3439, 9125), (4525, 6935)]